,,,&&&&,,&                                          ,&,&&&&,&,
,,,&,,,&,&                                          &&&&,,,&&&
&,,&&,,&&&                                          &,,,&,,&,,
&&,&,&,&,,                                          &&,,&&,&&,
&,&&&&&&&,                                          ,,&,&,&&,&
,&&,,,,,,&                   RAILS                  &,&&&&&,&&
&&,&,,,,,&                                          &&&,,,,&&,
&,&&&,,,,&                                          ,,,&,,,&,&
,&&,,&,,,& &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& ,,,&&,,&&&
&&,&,&&,,&                                          &,,&,&,&,,
&,&&&&,&,& &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& &&,&&&&&&,
&&&,,,&&&&                                          ,,&&,,,,,&
,,,&,,&,,,                                          ,,&,&,,,,&
&,,&&,&&,, TRAINS  ARE  SO  CONSTRUCTED  THAT  THEY &,&&&&,,,&
,&,&,&&,&, HAVE TO FOLLOW A SET PATH. THIS PATH  IS ,&&,,,&,,&
&&&&&&,&&& CALLED  A  "RAILWAY", WHICH IS COMPRISED ,&,&,,&&,&
,,,,,,&&,, OF TWO METAL RAILS,  HENCE ITS NICKNAME. &&&&&,&,&&
&,,,,,&,&,                                          &,,,,&&&&,
&&,,,,&&&& BECAUSE  THE  LOW  FRICTION  BETWEEN THE ,&,,,&,,,&
,,&,,,&,,, WHEELS OF THE  TRAIN AND THE RAIL METAL, &&&,,&&,,&
&,&&,,&&,, THERE ARE LIMITS FOR HOW  ACUTE  A CURVE &,,&,&,&,&
,&&,&,&,&, CAN BE,  AND EVEN MORE SO  FOR  HOW MUCH &&,&&&&&&&
&&,&&&&&&& THE  GROUND   UNDER  THE  RAILS  CAN  BE ,,&&,,,,,,
&,&&,,,,,, SLOPED. THUS  A RAILWAY IS OFTEN NOT LED ,,&,&,,,,,
&&&,&,,,,, ON TOP OF HILLS, RATHER THROUGH THEM  IN ,,&&&&,,,,
&,,&&&,,,, TUNNELS  (IF   THEY   ARE   LARGE),   OR ,,&,,,&,,,
&&,&,,&,,,            ARTIFICIAL CHASMS.            ,,&&,,&&,,
&,&&&,&&,,                                          ,,&,&,&,&,
&&&,,&&,&, THERE WILL BE TREES  ON THE SIDE  OF THE ,,&&&&&&&&
,,,&,&,&&& RAILS,  BUT NOT  TOO CLOSE, OR THEY WILL ,,&,,,,,,,
,,,&&&&&,, BE  CUT DOWN BY  THE  RAILWAY  JANITORS. &,&&,,,,,,
,,,&,,,,&, THERE  WILL  BE PLAINS,  AND  BODIES  OF ,&&,&,,,,,
,,,&&,,,&&                  WATER.                  ,&,&&&,,,,
,,,&,&,,&,                                          &&&&,,&,,,
,,,&&&&,&& TRAINS GO  BY  DAY  AND  BY NIGHT. ALONG &,,,&,&&,,
,,,&,,,&&,      THE WAY, THERE IS INFORMATION       ,&,,&&&,&,
,,,&&,,&,& SCATTERED, OFTEN PUT  ON  TOP OF  POLES, ,&&,&,,&&&
&,,&,&,&&& TO BE INTERPRETED  BY THE TRAIN DRIVERS. ,&,&&&,&,,
&&,&&&&&,, DIFFERENT  PARTS  OF  THE  RAILWAY  HAVE ,&&&,,&&&,
&,&&,,,,&,         DIFFERENT SPEED LIMITS.          &&,,&,&,,&
,&&,&,,,&&                                          &,&,&&&&,&
&&,&&&,,&, SOMETIMES, TRAINS HAVE  TO STOP AND WAIT &&&&&,,,&&
,,&&,,&,&& FOR SOMETHING TO  HAPPEN, FAR AWAY. THIS ,,,,,&,,&,
,,&,&,&&&, IS  SIGNALED  BY  RED  OR  GREEN LIGHTS. ,,,,,&&,&&
&,&&&&&,,&                                          &,,,,&,&&,
&&&,,,,&,&                 &&&&&&&&                 ,&,,,&&&,&
,,,&,,,&&&                                          &&&,,&,,&&
&,,&&,,&,, MANY  PEOPLE FOLLOW  THE  RAILS BY FOOT. ,,,&,&&,&,
&&,&,&,&&, OFTEN  THIS  PROVES  TO BE  THE  SHORTER ,,,&&&,&&&
,,&&&&&&,& PATH BETWEEN TWO  POINTS.  HOWEVER  THIS &,,&,,&&,,
,,&,,,,,&& IS   FROWNED  UPON,  AND  VERY  IMPOLITE &&,&&,&,&,
,,&&,,,,&,        TOWARD THE TRAIN DRIVERS!         ,,&&,&&&&&
&,&,&,,,&&                                          ,,&,&&,,,,
&&&&&&,,&,                                          ,,&&&,&,,,
&,,,,,&,&&                                          &,&,,&&&,,
&&,,,,&&&,                                          ,&&&,&,,&,
&,&,,,&,,&                                          &&,,&&&,&&
,&&&,,&&,&                                          ,,&,&,,&&,